Famed mathematician John Nash and his wife Alicia Nash were killed Saturday in a taxi crash on the New Jersey Turnpike, NJ.com reports. Nash, a Princeton University mathematics professor, won the Nobel Prize for economics in 1994 for his work in game theory, specifically the "Nash equilibrium." Nash's battle with paranoid schizophrenia was documented in the 2001 Academy Award best picture winning film "A Beautiful Mind." John Nash was 86 years old, and Alicia Nash was 82 years old, according to NJ.com.